Serpentine pipe bundle waste heat recovery device

Abstract

The invention provides a serpentine pipe bundle waste heat recovery device, and belongs to the technical field of a heat recovery device. According to the device, two ends of a flue communicate with achimney and a waste heat boiler respectively, a hot water heat exchanger is arranged in the flue, the lower end of the hot water heat exchanger communicates with a cold water pipe, the upper end of the hot water heat exchanger communicates with a hot air curtain through a hot water pipe, the hot air curtain is arranged in an air inlet pipe, one end of the air inlet pipe is an air inlet, the otherend of the air inlet pipe is connected with a grate cooler, and the other end of the grate cooler is connected with a waste heat boiler. According to the device, water is heated through a serpentinepipe heat exchanger and then enters the hot air curtain, air is heated by the water in the hot air curtain and then enters the grate cooler, the heated air is led into the grate cooler to carry out waste heat recovery, temperature of smoke at inlets of boilers at a kiln head and a kiln tail can be improved, generating capacity of the boilers at the kiln head and the kiln tail can be increased, andenergy can be saved; and waste heat of the smoke exhausting from the boilers at the kiln head and the kiln tail can be recovered, the influence of greenhouse gas on the environment can be reduced, fuel does not need to be supplemented in the power generation process, and no pollution can be generated.

Description

technical field [0001] The invention relates to a serpentine tube bundle waste heat recovery device, which belongs to the technical field of heat recovery devices. Background technique [0002] With the development of the cement industry, the energy-saving technology level of the cement industry in developed countries has developed rapidly. The low-temperature waste heat is recycled in the cement production process, and the heat energy utilization rate of cement clinker has been greatly improved. Influenced by the limitations of the environment and the awareness of energy conservation, there are still a large number of waste heat resources that have not been fully utilized, and the phenomenon of energy waste is still very prominent. [0003] Cement production has a strong consumption and dependence on electric energy, and the growth of the total amount of cement has played a role in promoting the growth of the total electricity consumption of the cement industry, which has e...

AI Technical Summary

Problems solved by technology

On the one hand, the development of coal power will accelerate the mining and consumption of limited resources such as coal; on the other hand, coal power production produces a large amount of CO 2 and other greenhouse gases, exacerbating the environmental pollution of the atmosphere

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